package com.atguigu.gulimall.cart.vo;

import java.math.BigDecimal;
import java.util.List;

/**
 * 需要计算的属性，必须重新get方法，保证每次获取水属性都会进行计算
 */
public class Cart {

    private List<CartItem> items;
    /**
     * 商品数量
     */
    private Integer countNum;
    /**
     * 商品类型数量
     */
    private Integer countType;

    /**
     * 商品总价
     */
    private BigDecimal totalAmount;

    /**
     * 减免价格
     */
    private BigDecimal reduce = new BigDecimal("0");


    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;

    }

    public Integer getCountNum() {
        int count = 0;
        if(items != null && items.size() > 0){
            for (CartItem item : items) {
                count += item.getCount();
            }
        }
        return count;
    }

    public Integer getCountType() {
        int countType = 0;
        if(items != null && items.size() > 0){
            for (CartItem item : items) {
                countType += 1;
            }
        }
        return countType;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal amount = new BigDecimal("0");
        //计算购物项总价
        if(this.items != null && this.items.size() > 0) {
            for (CartItem item : items) {
                if(item.getCheck()) {
                    BigDecimal totalPrice = item.getTotalPrice();
                    amount = amount.add(totalPrice);
                }
            }
            //减去优惠总价
            amount = amount.subtract(this.reduce);
        }
        return amount;
    }

    public void setTotalAmount(BigDecimal totalAmount) {
        this.totalAmount = totalAmount;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}

